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EDWARD W. GHADWIK, OFEDGARTOWN, MASSACHUSETTS, ASSIGNOR TO HIMSELF ANDWILLIAM P. GHADWICK, OF SAME PLAGE.

Letters Patent No. 81,067, elated August 18, 1868.

IMPROVED GAR-COUPLING.

TO ALL PERSONS TO WHOM THESE PRESENTS MAY COME:

Y Be it known that I, EDWARD W4. CIlADWIcK,of Edgartown, in the countyof `Dukes, and State of Massaehusetts, have invented an ImprovedCar-Coupling; and I-do hereby declare the same to bc fully described inthe following specication, and represented in the accompanyingdrawings,l of which-.-v

Figure 1 is a top view, and

Figure 2 a vertical and longitudinal section of such coupling and itslink.-

In suchdrawings, A denotes arailway-carriage draw-bar, provided withalink-receiving chamber, a, having a trumpet-shaped or flaring mouth, b,and also a recess or catch-socket, c, extending from the said chamber,and formed in manner as represented.

A lever-catch, B, shaped as shown in top view iu Figure 3, and insideelevation in Figure 4, is applied to the draw-bar so as to extendinto the chamber a, in manner as shown ing. 2. l

A cap, C, provided with a spring-receivingchamber, d, is arranged'in thetop of the draw-bar, and i'xed thereto by screws, e e.

This cap constitutes a cover t'o the open chamber a and the catch-lever,and as a cap to its journals, ff,

which are arranged within bearings, gg, made in the draw-bar, (seeFigure 5, which isa top view of the drawbar, and as it appears withoutthe cap, the catch-lever, and its operative spring, le.) The saidspring, e, is arranged in the chamber 0l, and in a groove, z', made inthe top of the catch-lever. Such spring is for the purpose of depressingthe lever and holding it within'. the catch-recess e. An arm, Z,extended up from the levereatch, and through a hole, m, in the cap C,enables a person, by means of a rope or chain fixed to-such arm, toraise the catch-lever out of the link D, when it may be desirable tounshacklc the two. The purpose of the recess e is to so support thelever-catch B under the strain of the link, as to prevent such strainfrom breaking'` v thejournals of the catch.

When the link enters the mouth and passes into tlm chamber ofthedraw-bar, such link will strike against the inclined lever-catch andforce thc same upward, and pass beyond it far enough for'the spring Itto depress the catch into the link and the recess c c. The link'willthen be coupled to the draw-bar.

The great strains brought on the catchlbar by the link are liable tobreak oif or bend a bolt, when usedas a centre or fulcrum t'o thecatch-lever. When bent in its hole, it often becomes difficult toextract the bolt. With my mode of making thc catch-lever, and supportingits fulcrum, no bolt becomes necessary, and as the journals of the leverare protected by thecatch-recess from being overstrnined, 4and arccovered by the cap, we have not only a means of preserving the leverfrom injury, but in case of its becoming broken or bent, wc can easilyremove, and substitute another for it, such lever with its journalsbeing cast in onefpiece of metal. The cap also serves as a protectionfor the spring 7e.

I make no claim to the combination of a catch-lever with a chambcreddraw-baryas I am aware that such is old. d Nor do I claim thearrangement and combination of the-recess c with thc chambcred draw-barand its catch-hiver. 4

The spring /r is so connected with the chambcred cap Cas to bc removabletherewith, the same serving to enable the spring to be raised oii' thecatch with the cap, when it may be desirable to gain ready access to theYcatch for its removal. l

What I claim as my invention is as follows:

The arrangementand combination of the chambercd cap C with the chambereddraw-bar A, the spring k a`nd the lever-catch`B, made as described.

EDWARD W. CHADWICK.

Witnesses Hannon VINCENT, DAVID J. CHADwicK.

